How to Make Breadcrumbs Without a Blender or Food Processor

I had a massive party this weekend and was left with a dozen mismatched hamburger buns.  I didn't know whether to blame low-carb diets or the sangria.

A great way to turn stale bread rejects into an edible food form is breadcrumbs.  I ended up with some great fried pickles to accompany my buffalo wings and some fried ravioli with marinara sauce, both in the same day.